BMS 430 Final Exam Questions With
Correct Answers
Name a hormone involved in water regulation - answerADH
The ability of the lizard, Anolis carolinensis, to change color from green to brown is due to the
hormone... - answerMSH
Suckling would stimulate the release of... - answerprolactin
Name ...
BRIGHTSTARS EXAM STUDY SOLUTIONS 8/15/2024 2:05 PM
BMS 430 Final Exam Questions With
Correct Answers
Name a hormone involved in water regulation - answer✔✔ADH
The ability of the lizard, Anolis carolinensis, to change color from green to brown is due to the
hormone... - answer✔✔MSH
Suckling would stimulate the release of... - answer✔✔prolactin
Name a hypothalamic hormone involved in reproduction - answer✔✔GnRH
What causes smooth muscle contractions in the uterus and mammary gland? -
answer✔✔oxytocin
What enzyme converts ATP into cAMP? - answer✔✔adenylate cyclase
The various components involved in the PKc signaling system (receptor, g-proteins, unique
lipids, etc) are maintained in close proximity to each other because they all reside in membrane
components called: - answer✔✔lipid rafts
The signal recognition particle binds to a receptor located on the... - answer✔✔endoplasmic
reticulum
What stimulates the production of testosterone in male and progesterone in the female? -
answer✔✔LH
What hormone exerts negative feedback on the anterior pituitary hormone FSH, but not on LH? -
answer✔✔inhibin
What assay is used for measuring the amount of hormone in a blood sample that utilizes
radioactively labeled hormone which competes with a non-labeled hormone for a restricted
number of antibodies to the hormone? - answer✔✔radioimmunoassay (RIA)
What metal is absolutely required for a steroid receptor to function? - answer✔✔Zinc
When estradiol is not present, its receptor is blocked from interacting with the DNA by... -
answer✔✔HSP90
, BRIGHTSTARS EXAM STUDY SOLUTIONS 8/15/2024 2:05 PM
When estradiol is present, where does its receptor interact with DNA? - answer✔✔HRE
Diabetes insipidus results due to a lack of... - answer✔✔ADH
The protein precursor for thyroid hormone is... - answer✔✔thyroglobulin
The half life of prolactin is 20 mins. If 200 ug of prolactin is injected into a rabbit, how much
remains in the rabbit one hour later? - answer✔✔25 ug. After 20 mins it's 100, 40 mins it's 50,
and 20 minutes it's 25.
The release of a hormone from a cell that then exerts an effect on that same cell is an example of
________________ effect: - answer✔✔autocrine
A _________________ must be modified in some way, removal of exons or glycoslyation, in
order to be converted into an active hormone. - answer✔✔prohormone
What interacts with the regulatory subunit of the protein kinase a tetramer, causing the the
tetramer to separate into individual subunits, permitting the kinase to be active? -
answer✔✔cAMP
Prostaglandins and prostacyclins are made from this precursor: - answer✔✔arachidonic acid
Diacyl glycerol (DAG) can turn on which enzyme? - answer✔✔protein kinase c
To determine WHERE in the cell a specific hormone is located at a specific time, one would
likely use which assay? - answer✔✔immunohistochemistry
The sertoli cell responds to both FSH and Testosterone. If both of these hormones reach a sertoli
cell at the same time, the effects of which hormone will the cell manifest first? - answer✔✔FSH
Bone growth is directly stimulated by.... - answer✔✔IGFs (somatomedins)
Release of anterior and posterior pituitary hormones are similar in that they are both dependent
on: - answer✔✔physiological input to neurons in the hypothalamus
the release of anterior and posterior pituitary hormones are different in that one type is dependent
on __________, while hormones from the other is not. - answer✔✔releasing and/or inhibiting
factors produced by the hypothalamus
Cholesterol is converted into pregnenalone by side-chain cleavage in the... -
answer✔✔mitochondria
Freshly ejaculated sperm cannot fertilize in an oocyte, but they must first undergo a series of
events known as "capacitation" prior to binding the oocyte. One of the events that occurs on
sperm during capacitation is significant rise in intracellular calcium levels. Progesterone binds to
a receptor located on the surface of the sperm membrane and can trigger capacitation in several
species of sperm. How might progesterone initiate sperm capacitation? - answer✔✔through the
Pkc system
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